The tuition is organized according to officially established curriculum and syllabus. The general and specialized language tuition for foreign citizens must last no less than nine months and is conducted in groups of no more than ten students. It includes compulsory subjects divided into two groups with minimum number of classes as follows:
1. for humanitarians – 800 academic hours Bulgarian;
2. for non-humanitarians:
Bulgarian – 650 academic hours;Respective subjects – 350 academic hours.

The training of doctoral and specializing students must be no shorter than six months and is organized in groups not exceeding ten students. The general and specialized language training for foreign citizens includes compulsory subjects divided into two groups with minimum number of classes as follows:1. for humanitarians – 550 academic hours Bulgarian;2. for non-humanitarians:
Bulgarian – 430 academic hours;Respective subjects – 230 academic hours.

The courses end with a written and an oral examination in Bulgarian. The examinations are assessed by an examination board. The specialized tuition ends with examinations in all subjects taught. The examinations are conducted and assessed by an examination board in all subjects included in the curriculum.

Students who have successfully completed the general and specialized courses are issued standard certificates, officially approved by the Minister of Education and Science, which are mandatory for enrollment of foreign citizens at Sofia University.

Language tuition fee: €3,300.

Applicants who are proficient in Bulgarian can sit the examinations without attending the courses (including examinations in specialized subject areas).

The standardized test gives the right of receiving a Certificate for level 'B2' in Bulgarian language - necessary for the application of candidates from non EU member countries.

Parallel Bulgarian language training is conducted by the Faculty of Slavic Studies for all international students enrolled at the University. It is obligatory for the first- and second-year students (in all faculties and specialties), and optional for the international students enrolled at the University in implementation of intergovernmental agreements for educational, scientific and cultural exchange or bilateral / multilateral agreements between Sofia University and foreign universities; Erasmus and Erasmus Mundus programs, CEEPUS exchange program, etc.